Got Sinister in tonight. He spent all day in a frigid truck so I'm not ready to put him through the motions yet. I did open everything to make sure all was accounted for and that there were no issues. I attempted to assemble his cape, but didn't get far. The cape is basically four pieces: two left, two right. They're glued together where the strands go into the figure so you're only inserting two parts. It feels like it's made out of ABS so it's very firm, rigid, and unforgiving. The part for the left side went in okay, but I couldn't get the right side in. I don't want to force it while everything is still pretty cold so I'll set aside for tomorrow.
The figure itself seems fine. The paint job is excellent, as usual, but one thing I didn't notice in the solicitation images is that he has single-jointed elbows. Not a huge deal, but I'd prefer the double-jointed ones we've been getting ever since Cyclops. I also wish he had a more 92 inspired portrait. This guy is pretty much all 97. It's subtle, but the face is a little different between the two.